Photoelectrocatalytic XAT strategy for the generation of alkyl radicals to synthesize alkylated 3-CF 3 -2-oxindoles

SiOH as the XAT reagent, eliminating the requirement for metal-reagents and oxidants. The reactions incorporate photocatalysis, electrochemistry and halogen atom transfer, demonstrating remarkable compatibility with a diverse array of primary, secondary, and tertiary alkyl bromides and iodides.